One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,8,12)(3,5,9,4)(6,10,13,15)(7,11,16,14)(18,24)(20,25)(26,32)(27,30)(33,34,38,36)(35,39,41,42)(37,40,45,44)(43,46,47,48)(1,3,8,9)(2,4,12,5)(6,7,13,16)(10,14,15,11)(17,18,23,24)(19,25,29,20)(21,26,28,32)(22,27,31,30)(35,41)(39,42)(43,47)(46,48)(1,4,8,5)(2,9,12,3)(6,14,13,11)(7,10,16,15)(17,19,23,29)(18,25,24,20)(21,22,28,31)(26,27,32,30)(33,35)(34,39)(36,42)(37,43)(38,41)(40,46)(44,48)(45,47)(1,5,8,4)(2,3,12,9)(6,11,13,14)(7,15,16,10)(17,20)(18,19)(21,30)(22,26)(23,25)(24,29)(27,28)(31,32)(1,6)(2,10)(3,7)(4,14)(5,11)(8,13)(9,16)(12,15)(17,21)(18,26)(19,22)(20,30)(23,28)(24,32)(25,27)(29,31)(33,36,38,34)(35,42,41,39)(37,40,45,44)(43,46,47,48)(1,7)(2,11)(3,13)(4,10)(5,15)(6,9)(8,16)(12,14)(17,22)(18,27)(19,28)(20,26)(21,29)(23,31)(24,30)(25,32)(33,37,38,45)(34,40,36,44)(35,43,41,47)(39,46,42,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.